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Internal Use Only Website http://biz.lgservice.com 3D Blu-ray™ / DVD Home Theater System SERVICE MANUAL MODEL: LHB675 (LHB675, S65T3-S) CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. P/NO : AFN77133597 SEPTEMBER, 2015...
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CONTENTS SECTION 1 ..SUMMARY SECTION 2 ..ELECTRICAL SECTION 3 ..CABINET & MAIN CHASSIS SECTION 4 ..MT8563 F/E LOADER PART SECTION 5 ..REPLACEMENT PARTS LIST...
When servicing this product, under no circumstances should the original design be modified or altered without permission from LG Corporation. All components should be replaced only with types identical to those in the original circuit and their physical location, wiring and lead dress must conform to original layout upon completion of repairs.
SERVICING PRECAUTIONS CAUTION: Before servicing the BD-HTS covered by this ser- Electrostatically Sensitive (ES) Devices vice data and its supplements and addends, read and follow Some semiconductor (solid state) devices can be damaged the SAFETY PRECAUTIONS. easily by static electricity. Such components commonly are NOTE: if unforeseen circumstances create conflict between called Electrostatically Sensitive (ES) Devices.
INITIAL SYSTEM SETUP When you turn on the unit for the fi rst time, the initial setup wizard appears on the screen. Set the display language and network settings on the initial setup wizard. 1. Press (POWER). 5. Press ENTER () to verify the test tone signals of The initial setup wizard appears on the screen.
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8. Displays private sound mode guide. Press ENTER (). 9. Displays the guide to enjoy online contents using LG AV Remote. Press ENTER ().
HIDDEN KEY MODE 1. MPEG HIDDEN KEY AVAILABLE ENTRANCE HIDDEN MODE EXIT KEY DISPLAY RESULT STATUS 1+3+9+7 DISPLAY SYSTEM (NO DISC||OPEN)&& +1+3+9 SYSTEM FACTORY RESET(All of data have to be Pause || MP2 INFORMATION (Highlight on 16:9 Full) +ENTER INFORMATION Initialized as Factory Mode except SPDATA) or MP2 1.FACTORY RESET(All of data have to be...
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2. MICOM HIDDEN KEY AVAILABLE HIDDEN MODE ENTRANCE KEY EXIT KEY DISPLAY RESULT STATUS DVD FUNCTION Front Stop + RMC “D-LOCK” Door Lock and POWER ON Toggling Stop for 5s display for 3s STATUS DVD FUNCTION Front Stop + RMC “D-UNLOCK”...
FIRMWARE UPDATE GUIDE 1. COPY AN UPDATE FILE TO A MEDIA (USB OR CD-ROM) Update File Name: LG_HB_A100M63.ROM 1) An update fi le have to be copied onto the root of fi le system. 2) USB and CD-ROM are able to use fi rmware update. <...
NETWORK SOFTWARE UPDATE Network update notifi cation Software update From time to time, performance improvements and/ You can update the player using the latest software or additional features or services may be made to enhance the products operation and/or add new available to units that are connected to a broadband features.
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Note : The Software Update function may not work properly depending on your internet environment. In this case, you can obtain the latest software from the authorized LG Electronics Service Center then update your player. Refer to “Customer Support”. 1-11...
SPECIFICATIONS • GENERAL Power requirements 120 V ~ 60 Hz Power consumption 110 W Networked standby : 0.5 W (If all network ports are activated.) Dimensions (W x H x D) Approx. 360 mm x 60.5 mm x 299 mm (14.1 inches x 2.3 inches x 11.7 inches) Net Weight (Approx.) 2.7 kg (5.9 lbs)
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• FRONT SPEAKERS / SURROUND (REAR) SPEAKERS / SUBWOOFERS Type Front Speaker 1 Way 1 Speaker Surround (Rear) Speaker 1 Way 1 Speaker Subwoofer 1 Way 1 Speaker Impedance Front Speaker 3 Ω Surround (Rear) Speaker 3 Ω Subwoofer 3 Ω Rated Input Power Front Speaker 167 W...
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SECTION 2 ELECTRICAL CONTENTS DIGITAL DISPLAY & MEDIA TRAINING MASTER ..................2-2 1. DISTORTED PICTURE ........................... 2-2 2. NO PICTURE ............................2-7 3. PICTURE COLOR ..........................2-12 4. NOISE/AUDIO PROBLEMS ........................2-14 5. MISCELLANEOUS ..........................2-17 6. BLU-RAY PLAYER ..........................2-26 ONE POINT REPAIR GUIDE ..........................
DIGITAL DISPLAY & MEDIA TRAINING MASTER Objective: To provide clear and concise guidelines for customer service agents to handle calls on box goods calls. 1. DISTORTED PICTURE 1-1. Lines on Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect What cables is the BD to the TV and if connected properly.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-2. Ghost Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect the BD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-3. Rolling Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect the BD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-4. Shaky Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect the BD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-5. Blurry Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect the BD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.
DIGITAL DISPLAY & MEDIA TRAINING MASTER 2. NO PICTURE 2-1. Black Screen The entire screen is black. In case of customer use composite cable please make sure selecting Does the BD on-screen available resolution in the menu of the BD player, composite video can just menu appear? support 480i/p.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-2. Blue Screen The entire screen is a solid blue color. In case of customer use composite cable please make sure selecting Does the BD on-screen available resolution in the menu of the BD player, composite video can just menu appear? support 480i/p.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-3. Snowy Screen A snowy picture is when black and white dots are all over the screen. In case of customer use composite cable please make sure selecting Does the BD on-screen available resolution in the menu of the BD player, composite video can just menu appear? support 480i/p.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-4. No Signal A “no signal” message appears on the screen of the display. In case of customer use composite cable please make sure selecting Does the BD on-screen available resolution in the menu of the BD player, composite video can just menu appear? support 480i/p.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-5. Invalid Format or Format Not Supported Make sure the customer’s simultaneously connecting analog component cable with HDMI cable. And then If Copy Protected Disc is playing back, Is the customer using a analog component output is no picture. Only when the analog output digital cable connection? is 480i, you can see the picture.
DIGITAL DISPLAY & MEDIA TRAINING MASTER 3. PICTURE COLOR 3-1. No Color The video displays no color and only shows in black and white. Determine what cables the customer is using to connect the BD What cables is the customer to the TV and if connected properly.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 3-2. Poor Color The color is poor. Examples would be washed out colors, colors bleeding into one another, or a solid tint to a screen. Determine what cables the customer is using to connect the BD to What cables is the customer the TV and if connected properly.
DIGITAL DISPLAY & MEDIA TRAINING MASTER 4. NOISE/AUDIO PROBLEMS 4-1. No Audio The customer is not able to get audio. Determine what cables the customer is using to connect the BD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 4-2. Distorted Audio The audio sounds muffled, scratchy, or the audio skips. Determine what cables the customer is using to connect the BD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 4-3. Humming/Clicking Noise The unit is making a humming noise or a clicking noise. BD’s make a slight hum when playing discs. Does the noise only A clicking noise or a noise interfering with audio may indicate a problem. happen when a disc Try multiple discs.
DIGITAL DISPLAY & MEDIA TRAINING MASTER 5. MISCELLANEOUS 5-1. No Power The unit will not turn on. Is the unit plugged in? Is the unit plugged in? Does the unit turn on See if the unit will turn on when the power button the unit is pressed. when the power button If the unit turns on, then troubleshoot the remote control using is pressed on the unit?
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-2. Disc Error The unit displays “disc error” when a disc is inserted into the BD player. Is the disc inserted into Make sure the disc has been inserted into the BD player properly. the BD player properly? The player can not read a disc inserted into the unit upside down.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-3. Unit Locks Up Unit does not respond to any commands. If the unit will turn on or off with the button on the unit, Does the unit respond to troubleshoot the remote control. Please refer to the buttons on the unit? Remote Control Not Working call flow.
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Please refer to the OM for instructions on how to program remote to TV. Customer wants to program a remote Does the customer want to other than Zenith or LG, the customer will need to contact program their remote? the manufacturer of the remote control. Codes do not work, remote is not compatible.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-6. Will Not Play Disc The unit will not play a disc when a disc is inserted into the player. Is the disc inserted into Make sure the disc has been inserted into the BD player properly. the BD player properly? The player can not read a disc inserted into the unit upside down.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-7. Disc Freezes or Skips The audio and video freeze and skip during play back of a BD or DVD disc. Is the disc inserted into Make sure the disc has been inserted into the BD player properly. the BD player properly? The player can not read a disc inserted into the unit upside down.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-8. Can Access Menu, but Not Play a Movie The disc menu is displayed but the disc will not play. Go into the system information screen of the BD player. To access this menu, bring up the main menu. Go to TV aspect, Check the system information highlight 16:9, press 1397139 and hit enter.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-10. Aspect Ratio The customer has bars on the top and bottom of the screen, the left and right of the screen, or both. A full screen movie played on a wide screen TV will have bars Is the movie on the left and right side of the TV.
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DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-11. My Unit Won’t be up-converted The customer has a problem with getting the unit to change resolutions to 576p, 720p, 1080i, 1080p. Ask the customer to press stop to stop the disc from playing. Is the disc Ask the customer to press the resolution button to change the resolution.
DIGITAL DISPLAY & MEDIA TRAINING MASTER 6. BLU-RAY PLAYER 6-1. Slow Loading Times for BD’s When a customer switches from one disc to another, Why does it take so long the lens have to be changed what causes the delay. to load my BD’s? BLU-RAY require different lasers to read the discs.
ONE POINT REPAIR GUIDE 1. NO POWER PROBLEM No power problem occurs when you power on the unit. 1-1. Fuse & Bridge diode 1-1-1. Solution Replace F901, BD901 on SMPS board. 1-1-2. How to troubleshoot (Countermeasure) 1) Look at the physical of fuse F901. 2) Check the bridge diode BD901.
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ONE POINT REPAIR GUIDE No power problem occurs when you power on the unit. 1-2. VFD, 14 VA, 5.5 VA 1-2-1. Solution Replace D922, D923, D924, D925, D926, D927, IC901. 1-2-2. How to troubleshoot (Countermeasure) Case 1) FLD abnormal: Check D950, D951, ZD951, ZD952, FR950 and replace it. Case 2) 5.5 VA abnormal: Check D952, D953 and replace it.
ONE POINT REPAIR GUIDE 2. NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE ON FRONT PANEL When you turn on your set, it will blank / no message on front panel, and stand-by led no working. 2-1. IC155 (No 3.3 VA) 2-1-1.
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ONE POINT REPAIR GUIDE When you turn on your set, it will blank / no message or Welcome on front panel, and it will not boot-up. 2-2. IC156 System 3.3 V (No System 3.3 V) 2-2-1. Solution Replace IC156 on MAIN board. 2-2-2.
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ONE POINT REPAIR GUIDE When you turn on your set, it will blank / no message or Welcome on front panel, and it will not boot-up. 2-3. IC151 (No 1.2 V & 1.5 V) 2-3-1. Solution Replace IC151 on MAIN board. 2-3-2.
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ONE POINT REPAIR GUIDE When you turn on your set, it will display “WELCOME” on front panel, and it will not boot-up normally. 2-4. X501 2-4-1. Solution Replace X501 on MAIN board. 2-4-2. How to troubleshoot (Countermeasure) 1) Please check the soldering status of 27 MHz crystal (X501). 2) Please check the frequency of 27 MHz crystal (X501).
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ONE POINT REPAIR GUIDE When you turn on your set, it will display “WELCOME” on front panel, and it will not boot-up normally. 2-5. IC503 (NAND FLASH MEMORY) 2-5-1. Solution Replace IC503 on MAIN board. 2-5-2. How to troubleshoot (Countermeasure) 1) Please check physical status of IC503 on your eyes.
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ONE POINT REPAIR GUIDE When you turn on your set, it will display “WELCOME” on front panel, and it will not boot-up normally. 2-6. IC502 (DDR3 MEMORY) 2-6-1. Solution Replace IC502 on MAIN board. 2-6-2. How to troubleshoot (Countermeasure) 1) Please check 0.75 V of DDR3_VREF. (between C5C2 and R5C3) Please check 1.5 V of IC502.
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ONE POINT REPAIR GUIDE When you turn on your set, it will display “WELCOME” on front panel, and it will not boot-up normally. 2-7. IC501 (MPEG IC) 2-7-1. Solution Replace IC501 on MAIN board. 2-7-2. How to troubleshoot (Countermeasure) 1) Please Check 1.2 V of C551 on MAIN board. Please Check 3.3 V of C536 on MAIN board.
ONE POINT REPAIR GUIDE 3. WIRED NETWORK CONNECTION ERROR When you connect online service (like You-tube or Netflix2.1) through the wired LAN, the “no connection“ message appears. 3-1. JK251 (ETHERNET JACK) 3-1-1. Solution Replace JK251 on MAIN board. 3-1-2. How to troubleshoot (Countermeasure) 1) Check you internet connection.
ONE POINT REPAIR GUIDE 4. BAD HDMI VIDEO / AUDIO OUTPUT When unit is connected to HDMI TV using HDMI cable, picture shows bad color, no output or mixed color on the screen. But component output is OK. 4-1. JK252 (HDMI JACK) 4-1-1.
ONE POINT REPAIR GUIDE 5. NO AUDIO FROM SPEAKER When unit is connected to speaker, no audio from speaker. 5-1. IC601 (PWM IC) 5-1-1. Solution Replace IC601 (PWM IC). 5-1-2. How to troubleshoot (Countermeasure) 1) Check IC601 pin soldering. 2) If there is short soldering on pin IC601, re-soldering pin IC601. 3) If problem still occurs, check AMP IC (IC700, IC701, IC702).
ONE POINT REPAIR GUIDE 6. NO USB When unit is connected to USB, no audio and video from SET. 6-1. IC501 (MT8563) 6-1-1. Solution Change IC501 (MT8563). 6-1-2. How to troubleshoot (Countermeasure) 1) MAIN board : Check CN104 connector and FFC cable. JACK board : Check CN202 connector.
ONE POINT REPAIR GUIDE 7. BT CONNECTION ERROR When you connect Wireless connection(like mobile phone, multi-room SPK, etc) through the BT, the “BT ERROR“ message appears. 7-1. BT module 7-1-1. Solution Replace BT module on Main chassis. 7-1-2. How to troubleshoot (Countermeasure) 1) Check your BT device.
ELECTRICAL TROUBLESHOOTING GUIDE 1. SYSTEM POWER SUPPLY ON SMPS BOARD No 5.5 VA Replace F901 (same fuse). Is F901 normal? Replace TH901. Is TH901 normal? Is BD901 normal? Replace BD901. Is the VCC Check or replace. (11 V ~ 25 V) supplied to IC901 pin7? Is D952, D953 normal? Replace D952, D953.
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ELECTRICAL TROUBLESHOOTING GUIDE No 14 VA Replace F901 (same fuse). Is F901 normal? Replace TH901. Is TH901 normal? Is BD901 normal? Replace BD901. Is the VCC Check or replace. (11 V ~ 25 V) supplied to IC901 pin7? Is D955, D956 normal? Replace D955, D956.
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ELECTRICAL TROUBLESHOOTING GUIDE No PVDD (36 VA / 26 VA) Check MICOM IC on MAIN board. Is the P-CTRL normal? Is the VCC Is Q902 normal? (11 V ~ 25 V) supplied to IC902 pin4? Check or replace Q902. Replace IC902. Is IC902 normal? Is Q951 normal? Replace Q951.
ELECTRICAL TROUBLESHOOTING GUIDE 2. POWER SUPPLY ON MAIN BOARD No 3.3 V Is the VCC supplied Check 5.5 VA on SMPS board. to IC156 pin3? Is there signal Check IC101 pin25 (DCDC33_CTRL). at IC156 pin2? Check IC156 and replace. No 3.3 VA Is the VCC supplied Check 5.5 VA on SMPS board.
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ELECTRICAL TROUBLESHOOTING GUIDE No 12 V Is the VCC supplied Check 14 VA on SMPS board. to IC150 pin2? Is the VCC supplied Check IC101 pin57 (LDO_CTRL). to IC150 pin1? Check IC150 and replace. No A9P5V (9.5 V) Is the VCC supplied Check 12V_Loader (IC150) on MAIN board.
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ELECTRICAL TROUBLESHOOTING GUIDE No 5V_LOADER / W_5V Is the VCC supplied Check 5.5 VA on SMPS board. to IC153 pin3? Is there signal Check IC101 pin57 (LDO_CTRL). at IC153 pin1? Check IC153 and replace. MIC_5V / USB_5V / VCC_5V Is the VCC supplied Check 5.5 VA on SMPS board.
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ELECTRICAL TROUBLESHOOTING GUIDE No 1.5 V / 1.2 V Is the VCC supplied Check 5.5 VA on SMPS board. to IC151 pin9 or pin22? Is there signal Check IC101 pin24 (DC15_12_CTRL). at IC151 pin2 or pin3? Check IC151 and replace. No HDMI_5VA Is the VCC supplied Check 5.5 VA on SMPS board.
ELECTRICAL TROUBLESHOOTING GUIDE 3. SYSTEM PART Power on Check IC155 Stand-by LED 5.5 VA, 3.3 VA and 5.5 VA on SMPS board. IC101: 3.3 VA / Check IC101 / IC151 / IC156 IC151: 1.5 V, 1.2 V / and SMPS board. IC156 : 3.3 V OK? X501 Replace X501.
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ELECTRICAL TROUBLESHOOTING GUIDE “LG Logo” IC101: 3.3 VA / Check IC101 / IC151 / IC156 display on monitor IC151: 1.5 V, 1.2 V / and SMPS. IC156 : 3.3 V OK? X501 27.000 MHz Replace X501. IC503 Replace IC503 NF_ALE, NF_CLE (NAND FLASH).
ELECTRICAL TROUBLESHOOTING GUIDE 4. NO HDMI OUTPUT No HDMI audio / video output Check H_5VA IC152. JK252 H_5VA OK? IC101 Check IC101. HDMI_SCL/SDA, EDID_SW, CEC_RX/TX HDMI_RST OK? JK252 pin19 HPD Check hot plug detect signal from TV. about 3.3 V OK? Check IC501 MT8563 VCC Is there signal on pin1, 3, 4, 6, 7, 9, 10, 12?
DIFFER FROM THE ACTUAL CIRCUIT USED. THIS 2. Voltages are DC-measured with a digital voltmeter 1. SMPS CIRCUIT DIAGRAM PERMISSION FROM THE LG CORPORATION. ALL WAY, IMPLEMENTATION OF THE LATEST SAFETY during Play mode. COMPONENTS SHOULD BE REPLACED ONLY WITH...
PRINTED CIRCUIT BOARD DIAGRAMS 1. SMPS P. C. BOARD (TOP VIEW) (BOTTOM VIEW) NOTE) Warning Parts that are critical with respect to risk of fire or electrical shock. 2-89 2-90...
3. JACK P. C. BOARD (OPTIONAL PART) 3-1. USB / PORTABLE / MIC P. C. BOARD (TOP VIEW) (BOTTOM VIEW) 3-2. USB / PORTABLE P. C. BOARD (TOP VIEW) (BOTTOM VIEW) 2-93 2-94...
EXPLODED VIEWS 1. CABINET AND MAIN FRAME SECTION NOTES) THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE. OPTIONAL PART CABLE3 CABLE2 CABLE1 JACK MAIN CN901 SMPS...
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SECTION 4 MT8563 F/E LOADER PART CONTENTS LD CHECK GUIDE ............................4-2 1. PURPOSE ..............................4-2 2. LD CHECK PROCEDURE ........................4-2 HOW TO USE THE SA RESET FUNCTION ..................4-3 1. PURPOSE ..............................4-3 2. REQUIRED SA RESET..........................4-3 3.
LD CHECK GUIDE 1. PURPOSE If LD (Laser Diode) have problem, disc reading problem can happen. So it is needed to check LD status. 2. LD CHECK PROCEDURE 1) Power on the set (then, mode is in home menu). 4 ) Check result is shown automatically. If you will see “PASS”, BD/DVD/CD LD status is OK.
HOW TO USE THE SA RESET FUNCTION 1. PURPOSE In order to insert the new SA adjustment values, it needs clearing SA initial values of the flash memory. 2. REQUIRED SA RESET - After changing traverse. - After changing main board assembly. - After changing main board flash IC.
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4) Insert BD-ROM SL disc. (Tray is opened automatically.) 5) If the disc is inserted, you will see “Wait...”. 6 ) If SA Adjustment is fi nished, you will see “PASS” and tray is opened automatically. 7) Press stop key twice to escape this special mode. Reference:...
MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION 1. IC501 (MT8563) PIN DESCRIPTION 1-1. Pin Function PIN NO. SYMBOL TYPE DESCRIPTION SERVO AUX1 Analog I/O Auxiliary Input. Alternateive Function : Signal Monitoring AVDD12 Analog Power(1.2V) Power Pin AVDD33_1 Analog Power(3.3V) Power Pin AVDD33_3 Analog Power(3.3V)
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PIN NO. SYMBOL TYPE DESCRIPTION PC RS232 serial receive data. The pin is spike-free at power-on stage. Alternate function : 3.3V LVTTL I/O, 1. High speed serial output port. (CLOCK) 5V-tolerance, 2. Internal monitored signal output FEGIO10 2, 4, 6, 8 mA PDR, 3.
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PIN NO. SYMBOL TYPE DESCRIPTION Analog Input Input of Main Beam Signal (D) Analog Input Input of Sub-Beam Signal (E) Analog Input Input of Sub-Beam Signal (F) Analog Input Input of Sub-Beam Signal (G) Analog Input Input of Sub-Beam Signal (H) Multiplexer Output 1 for Signal Monitoring.